Monitor and control method

Abstract

The invention discloses a monitor and a control method. The monitor comprises a sensor, a control module, an output module and a relay module. The sensor generates a first sensing signal representing the motion state of the sensor, the control module receives the first sensing signal and a second sensing signal representing the motion state of the controlled device, the output module outputs a first output signal and a second output signal, and the control module generates a third control signal based on the first sensing signal or the second sensing signal. And the relay module is connected with the control module so as to output a fourth control signal for controlling the controlled equipment based on the third control signal. According to the monitor and the control method provided by the invention, the functions of monitoring and controlling the signals sensed by the sensor of the controlled equipment and controlling the controlled equipment by monitoring the motion state of the monitor after the monitor is mounted on the controlled equipment are simultaneously realized, so that the protection effect is improved, and the safety of the controlled equipment is improved. And more comprehensive and diversified monitoring and protection can be provided.

Description

Technical Field

[0001] The invention belongs to the technical field of industrial automation, and in particular relates to a monitor and a control method. Background Art

[0002] In the field of industrial automation, it is often necessary to monitor the posture of moving equipment. A common practice is to detect the motion state of the controlled equipment through a detection sensor, which then sends the detection data to the monitor in the form of a pulse signal for monitoring. When the controlled equipment meets certain conditions, such as overspeed, the monitor outputs a signal to the master control device, which then controls the controlled equipment to shut down.

[0003] In the above process, the detection sensors and monitors are located on the side of the master device and do not move with the controlled device. If any link between the controlled device and the master device is disconnected, the controlled device will not be able to automatically control the shutdown after overspeeding, and the protection function will fail.

[0004] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0005] The object of the present invention is to provide a monitor and a control method, which can provide active monitoring for a controlled device.

[0006] In order to achieve the above object, a technical solution provided by a specific embodiment of the present invention is as follows:

[0007] A monitor includes a circuit board and a sensor, a control module, an output module and a relay module arranged on the circuit board, wherein the sensor is used to generate a first sensor signal representing its own motion state, the control module is connected to the sensor to receive the first sensor signal, the control module is connected to a controlled device to receive a second sensor signal representing the motion state of the controlled device, the control module generates a first control signal based on the first sensor signal, the control module generates a second control signal based on the second sensor signal, the output module is connected to the control module to output a first output signal representing the motion state of the sensor based on the first control signal and output a second output signal representing the motion state of the controlled device based on the second control signal, the control module generates a third control signal based on the first sensor signal or the second sensor signal, and the relay module is connected to the control module to output a fourth control signal for controlling the controlled device based on the third control signal.

[0008] In one or more embodiments of the present invention, a display module is further provided on the circuit board, and the display module is connected to the control module to perform display based on the control of the control module.

[0009] In one or more embodiments of the present invention, an input module is further provided on the circuit board, the input module is connected to the control module, and the input module is used to input a configuration signal for configuring the control module.

[0010] In one or more embodiments of the present invention, a communication module is further provided on the circuit board, and the communication module is connected to the control module and the external device to control the communication between the external device and the control module.

[0011] In one or more embodiments of the present invention, the output module includes a first pulse output unit, which is connected to the control module to output a first output signal representing the motion state of the sensor based on a first control signal; and / or the output module includes a second pulse output unit, which is connected to the control module to output a second output signal representing the motion state of the controlled device based on a second control signal.

[0012] In one or more embodiments of the present invention, the output module includes a first digital-to-analog conversion unit, which is connected to the control module to output a first output signal representing the motion state of the sensor based on the first control signal; and / or the output module includes a second digital-to-analog conversion unit, which is connected to the control module to output a second output signal representing the motion state of the controlled device based on the second control signal.

[0013] In one or more embodiments of the present invention, a storage module is further disposed on the circuit board, and the storage module is connected to the control module.

[0014] A specific embodiment of the present invention also provides a control method, based on the above-mentioned monitor, the control method includes: generating a first sensor signal representing the motion state of the sensor itself through the sensor; receiving the first sensor signal and the second sensor signal representing the motion state of the controlled device through the control module, and generating a first control signal based on the first sensor signal, generating a second control signal based on the second sensor signal, and generating a third control signal based on the first sensor signal or the second sensor signal; outputting a first output signal representing the motion state of the sensor based on the first control signal and outputting a second output signal representing the motion state of the controlled device based on the second control signal through the output module; and outputting a fourth control signal for controlling the controlled device based on the third control signal through the relay module.

[0015] In one or more embodiments of the present invention, the control method further comprises fixing the monitor and the controlled device and moving the monitor along with the controlled device.

[0016] In one or more embodiments of the present invention, generating a third control signal based on the first sensor signal or the second sensor signal by the control module includes: determining whether the controlled device is overspeeding based on the first sensor signal or the second sensor signal by the control module, and generating a corresponding third control signal.

[0017] Compared with the prior art, the monitor and control method of the present invention integrate external sensor signal input monitoring and self-motion state monitoring on the monitor, and at the same time have the functions of monitoring and controlling through the sensing signals of the controlled device's own sensors, and when the monitor is installed on the controlled device, it can control the controlled device by monitoring its own motion state. When the connection between the controlled device and the main control device is lost, active monitoring can also be achieved through the monitor in this solution, thereby improving the protection effect and being able to provide more comprehensive and diversified monitoring and protection.

[0018] At the same time, the monitor of the present invention also has a variety of data output modes, which is convenient for staff to flexibly obtain monitoring data during actual use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 FIG. 4 is a system structure diagram of a monitor in one embodiment of the present invention.

[0021] Figure 2 FIG. 4 is a circuit diagram of a power module in an embodiment of the present invention.

[0022] Figure 3 FIG. 4 is a circuit diagram of a sensor in one embodiment of the present invention.

[0023] Figure 4 FIG. 4 is a circuit diagram of an input module in one embodiment of the present invention.

[0024] Figure 5 FIG. 4 is a circuit schematic diagram of a control module in one embodiment of the present invention.

[0025] Figure 6 FIG. 4 is a circuit schematic diagram of a relay module in one embodiment of the present invention.

[0026] Figure 7 FIG. 4 is a circuit diagram of an output module in one embodiment of the present invention.

[0027] Figure 8FIG. 4 is a circuit schematic diagram of a display module in one embodiment of the present invention.

[0028] Fig. 9 FIG. 4 is a circuit schematic diagram of a communication module in an embodiment of the present invention.

[0029] Fig.10 Flow chart of a control method in one embodiment of the present invention. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0031] "Coupled" or "connected" or "connected" in the specification includes both direct connection and indirect connection. Indirect connection is a connection through an intermediate medium, such as a connection through an electrically conductive medium, which may have parasitic inductance or parasitic capacitance; indirect connection may also include connection through other active or passive devices on the basis of achieving the same or similar functional purposes, such as connection through circuits or components such as switches and follower circuits. In addition, in the invention, words such as "first" and "second" are mainly used to distinguish one technical feature from another technical feature, and do not necessarily require or imply that there is a certain actual relationship, quantity or order between these technical features.

[0032] In the detailed description of the specification, reference is made to the accompanying drawings forming a part thereof, wherein like reference numerals refer to like parts throughout, and wherein are shown by way of exemplary embodiments that may be implemented. It should be understood that other embodiments may be utilized and structural or logical changes may be made without departing from the scope of the present disclosure. Therefore, the following detailed description should not be considered in a limiting sense.

[0033] The various operations in the specification may be described in turn as multiple discrete actions or operations in a manner that is most helpful in understanding the claimed subject matter. However, the order of description should not be interpreted as implying that these operations must be order-dependent. Specifically, these operations may not be performed in the order presented. The described operations may be performed in an order different from the described embodiments. Various additional operations may be performed and / or the described operations may be omitted in additional embodiments.

[0034] For purposes of this disclosure, the phrase "A and / or B" means (A), (B), or (A and B). For purposes of this disclosure, the phrase "A, B and / or C" means (A), (B), (C), (A and B), (A and C), (B and C), or (A, B and C).

[0035] Various components, devices, and signals may be referred to or shown in singular form in this document (for example, "MOS tube", "switch", "control signal", etc.), but this is only for convenience of discussion, and any element or signal mentioned in singular form may include multiple such elements or signals according to the teachings of this document.

[0036] The specification describes the use of the phrases "in one embodiment" or "in other embodiments" or "in some embodiments", which may each refer to one or more of the same or different embodiments. In addition, the terms "including", "comprising", "having", etc. used in relation to the embodiments of the present disclosure are synonymous.

[0037] like Figure 1 As shown, a monitor in one embodiment of the present invention includes a circuit board and a sensor 10, a control module 20, an output module 30, a relay module 40, a display module 50, an input module 60, a communication module 70, a storage module 80 and a power module 90 arranged on the circuit board.

[0038] Among them, the sensor 10 is used to generate a first sensor signal representing its own motion state, the control module 20 is connected to the sensor 10 to receive the first sensor signal, the control module 20 is connected to the controlled device to receive the second sensor signal representing the motion state of the controlled device, the control module 20 generates a first control signal based on the first sensor signal, the control module 20 generates a second control signal based on the second sensor signal, the output module 30 is connected to the control module 20 to output a first output signal representing the motion state of the sensor 10 based on the first control signal and output a second output signal representing the motion state of the controlled device based on the second control signal, the control module 20 generates a third control signal based on the first sensor signal or the second sensor signal, and the relay module 40 is connected to the control module 20 to output a fourth control signal for controlling the controlled device based on the third control signal.

[0039] The display module 50 is connected to the control module 20 to display based on the control of the control module 20. The input module 60 is connected to the control module 20, and the input module 60 is used to input a configuration signal for configuring the control module 20. The communication module 70 is connected to the control module 20 and an external device to control the communication between the external device and the control module 20. The storage module 80 is connected to the control module 20, and the storage module 80 can be used to store the first sensor signal, the motion state data represented by the second sensor signal, the configuration parameters of the control module 20, the monitoring and control records, etc. The power module 90 is connected to the other modules and provides working voltage for each module.

[0040] In one embodiment, a motion sensor is provided on the controlled device, which can detect the motion state of the controlled device and generate two second sensing signals. The two second sensing signals are both pulse signals, and the pulse signals can characterize the motion state of the controlled device through their frequencies, such as speed, acceleration and other information. In other embodiments, other forms and quantities of second sensing signals can also be used to monitor the motion state of the controlled device according to actual needs.

[0041] In one embodiment, the relay module 40 is directly connected to the controlled device to output the fourth control signal to the controlled device to achieve its control. In other embodiments, the relay module 40 can also be connected to a main control device (such as a host computer) or other device of the controlled device, and the fourth control signal is output to the device, and then the device controls the controlled device based on the fourth control signal.

[0042] like Figure 2 As shown, the power module 90 includes a voltage stabilizing chip U1, a voltage stabilizing chip U2 and peripheral circuits thereof. The voltage stabilizing chip U1 is preferably XL1509, and the voltage stabilizing chip U1 is used to convert a 24V power supply voltage into a 5V working voltage. The voltage stabilizing chip U2 is preferably ME6211, and the voltage stabilizing chip U1 is used to convert a 5V working voltage into a 3.3V working voltage.

[0043] like Figure 3 As shown, the sensor 10 includes a sensor chip U6 and its peripheral circuits. The model of the sensor chip U6 is preferably MPU6050. The sensor chip U6 can monitor its own motion state through a built-in gyroscope. In one embodiment, the sensor chip U6 monitors its own three-axis angular acceleration ω x ,ω y and ω z The 3-axis angular acceleration ω is output through its own pins 23 and 24 x ,ω y and ω z The first sensor signal.

[0044] like Figure 4As shown, the input module 60 includes a plurality of key switches. In one embodiment, four key switches are provided, one end of each key switch is connected to the ground voltage, and the other end generates a configuration signal. A capacitor can also be connected in parallel at both ends of the key switch to improve the stability of the configuration signal. By generating different configuration signals through the key switches, the functions, parameters, control logic, etc. of the control module 20 can be configured.

[0045] like Figure 5 As shown, the control module 20 includes a control chip and its peripheral circuits. The model of the control chip U4 is preferably CH32F203RCT6.

[0046] Pins 61 and 62 of the control chip U4 are connected to pins 23 and 24 of the sensor chip U6 to receive a first sensor signal, respectively. Pins 14 and 15 of the control chip U4 are connected to the controlled device to receive a second sensor signal, respectively.

[0047] The control chip U4 can solve the first sensor signal and the second sensor signal to obtain the motion state data represented by the signal.

[0048] Pins 24, 25, 26 and 27 of the control chip U4 are respectively connected to four key switches to receive four configuration signals.

[0049] The control chip U4 can be configured based on the configuration signal, such as configuring its control logic, parameters, etc. The control chip U4 can also be configured by program writing or the like.

[0050] Pins 51, 52 and 53 of the control chip U4 are connected to the communication module 70 to communicate with external devices through the communication module 70. Pins 17, 20 and 28-30 of the control chip U4 are connected to the display module 50 to control the display module 50 to display.

[0051] Pins 39, 40 and 41 of the control chip U4 are connected to the output module 30 to output the first control signal and the second control signal. Pins 61 and 62 of the control chip U4 are also connected to the output module 30 to output the first control signal and the second control signal.

[0052] In one embodiment, after the control chip U4 calculates the motion state information represented by the first sensor signal, it outputs the first control signal PM1 in pulse form through its own pin 39. The first control signal PM1 can represent the motion state information calculated based on its own frequency.

[0053] Similarly, after the control chip U4 calculates the motion state information represented by the two second sensor signals, it outputs a pulse-form second control signal PM2 and a pulse-form second control signal PM3 through its own pins 40 and 41 respectively. The second control signal PM2 can be a motion state information calculated based on its own frequency representation, and the second control signal PM3 can be another motion state information calculated based on its own frequency representation.

[0054] In other embodiments, the form and quantity of the first control signal and the second control signal output by the control chip U4 may also be changed according to actual needs.

[0055] In one embodiment, the sensor chip U6, the control chip U4 and the output module 30 can communicate based on the I2C protocol, and output or receive the first control signal, the second control signal and the first sensor signal through the pins 61 and 62 of the control chip U4 based on the I2C protocol. At this time, the first control signal and the second control signal are both I2C protocol standard signals, the first control signal includes the motion state information represented by the first sensor signal, and the second control signal includes the motion state information represented by the second sensor signal.

[0056] Pin 37 , pin 38 , and pin 44 of the control chip U4 are connected to the relay module 40 to generate a third control signal respectively.

[0057] In one embodiment, the three third control signals can represent different control contents respectively, and the subsequent relay module 40 can also generate a corresponding fourth control signal based on each third control signal, thereby realizing three different controls on the controlled device. Of course, it can be understood that any of the three third control signals can also represent the same control content, and can be freely set according to actual conditions.

[0058] The three third control signals can be generated by the control chip U4 through a preset control logic, all based on the first sensor signal, or all based on the second sensor signal, or partly based on the first sensor signal and partly based on the second sensor signal. The control logic for generating the third control signals can be modified by programming and configuring the control chip U4.

[0059] For example, the control chip U4 obtains the speed information of the controlled device based on the second sensor signal, and determines whether the speed exceeds the threshold. If the speed exceeds the threshold, a specific third control signal is generated to control the relay module 40 to generate a corresponding fourth control signal, and then the controlled device is controlled to stop running. If the speed does not exceed the threshold, an opposite third control signal is generated to keep the controlled device running, and so on. Those skilled in the art can simply complete the writing and configuration of the control logic as needed, and no further elaboration is given here.

[0060] In other embodiments, other numbers of third control signals may also be generated.

[0061] like Figure 6 As shown, the relay module 40 includes a driver chip U7 and a relay assembly. The model of the driver chip U7 is preferably ULN2001DS. Pins 1, 2, and 3 of the driver chip U7 are respectively connected to pins 37, 38, and 44 of the control chip U4 and receive a corresponding third control signal. The driver chip U7 is used to generate three drive signals based on the three third control signals and output them through its own pins 6, 7, and 8.

[0062] In one embodiment, three relay assemblies are provided. The relay assembly includes a relay chip K1 and its peripheral circuit. Pins 8 of the three relay chips K1 are respectively connected to pins 6, 7, and 8 of the driver chip U7 to receive corresponding drive signals, and the relay chip K1 outputs a fourth control signal through its own pin 6 based on the drive signal. Based on the foregoing, pins 6 of the three relay chips K1 can all be directly connected to the controlled device to output the fourth control signal, and can also be connected to the main control device to further control the controlled device through the main control device.

[0063] like Figure 7 As shown, the output module 30 includes a first pulse output unit, a second pulse output unit, a first digital-to-analog conversion unit, and a second digital-to-analog conversion unit.

[0064] The first pulse output unit is connected to the control chip U4 to output a first output signal representing the motion state of the sensor 10 based on the first control signal. The second pulse output unit is connected to the control chip U4 to output a second output signal representing the motion state of the controlled device based on the second control signal.

[0065] The first digital-to-analog conversion unit is connected to the control chip U4 to output a first output signal representing the motion state of the sensor 10 based on the first control signal. The second digital-to-analog conversion unit is connected to the control chip U4 to output a second output signal representing the motion state of the controlled device based on the second control signal.

[0066] In one embodiment, the pin 39 of the control chip U4 is used to output a first control signal PM1 in a pulse form, and the first control signal PM1 can represent the comprehensive angular velocity value ω of the sensor 10 itself through the pulse frequency. The comprehensive angular velocity value ω can be calculated by the control chip U4 through the following formula:

[0067]

[0068] Pins 40 and 41 of the control chip U4 are used to output the second control signal PM2 and the second control signal PM3 in pulse form. The second control signal PM2 and the second control signal PM3 can respectively represent the speed, acceleration or other information of the controlled device through the pulse frequency.

[0069] In one embodiment, the first pulse output unit includes a photoelectric conversion chip U9 and its peripheral circuits, and the model of the photoelectric conversion chip U9 is preferably CTS701. Pin 1 of the photoelectric conversion chip U9 is connected to pin 39 of the control chip U4 through a resistor to receive the first control signal PM1, and the photoelectric conversion chip U9 outputs the first output signal PWM1 through its own pin 5.

[0070] In one embodiment, two second pulse output units are provided, including a photoelectric conversion chip U10 and its peripheral circuits, a photoelectric conversion chip U11 and its peripheral circuits, and the models of the photoelectric conversion chip U10 and the photoelectric conversion chip U11 are preferably CTS701. Pin 1 of the photoelectric conversion chip U10 is connected to pin 40 of the control chip U4 through a resistor to receive the second control signal PM2, and the photoelectric conversion chip U10 outputs the second output signal PWM2 through its own pin 5. Pin 1 of the photoelectric conversion chip U11 is connected to pin 41 of the control chip U4 through a resistor to receive the second control signal PM3, and the photoelectric conversion chip U11 outputs the second output signal PWM3 through its own pin 5.

[0071] In other embodiments, the control chip U4 may also generate other numbers and characterizing meanings of first control signals and second control signals, such as generating three first control signals and respectively characterizing the values ​​of the three-axis angular acceleration of the sensor chip U6 itself, generating a second control signal and characterizing the speed of the controlled device, and so on. It is also understandable that the number of first pulse output units and the number of second pulse output units may also be changed according to the number of signals that need to be output. The specific meaning represented by the first output signal generated by the first pulse output unit and the second output signal generated by the second pulse output unit may also change with the specific meaning represented by the first control signal and the second control signal received. By configuring and modifying the control chip U4, the specific meaning of the output signal can be conveniently and flexibly set, which greatly enriches the usage scenarios.

[0072] like Figure 7 As shown, the first digital-to-analog conversion unit includes a digital-to-analog conversion chip U8 and its peripheral circuits, and the second digital-to-analog conversion unit includes a digital-to-analog conversion chip U13 and its peripheral circuits. The models of the digital-to-analog conversion chip U8 and the digital-to-analog conversion chip U13 are preferably GP8303.

[0073] Among them, the pins 1 and 2 of the digital-to-analog conversion chip U8, and the pins 1 and 2 of the digital-to-analog conversion chip U8 are respectively connected to the pins 61 and 62 of the control chip U4, so as to respectively receive the first control signal and the second control signal sent by the control chip U4 based on the I2C protocol. The digital-to-analog conversion chip U8 generates a first output signal based on the first control signal and outputs it through its own pin 8, and the digital-to-analog conversion chip U13 generates a second output signal based on the second control signal and outputs it through its own pin 8. Both the first output signal and the second output signal are in the form of current.

[0074] In one embodiment, the peripheral circuits of the digital-to-analog conversion chip U8 and the digital-to-analog conversion chip U13 include a transistor chip U12 whose model is AO4805 and integrates two PMOS transistors, and the gates of the two PMOS transistors are both connected to the bias voltage.

[0075] Pin 1 of the transistor chip U12 (the source of a PMOS tube) is connected to pin 8 of the digital-to-analog conversion chip U8 to receive the first output signal, and pin 8 of the transistor chip U12 (the drain of the PMOS tube) is used to output the first output signal. Pin 4 of the transistor chip U12 (the source of another PMOS tube) is connected to pin 8 of the digital-to-analog conversion chip U13 to receive the second output signal, and pin 5 of the transistor chip U12 (the drain of the PMOS tube) is used to output the second output signal.

[0076] In other embodiments, the first pulse output unit or the second pulse output unit may not be provided, and the first digital-to-analog conversion unit or the second digital-to-analog conversion unit may not be provided.

[0077] like Figure 8 As shown, the display module 50 includes an LED module and a display screen. The LED module is connected to pins 28 to 30 of the control chip U4 to perform light display based on the control of the control chip U4. The display screen is connected to pins 17 and 20 of the control chip U4 through a connector J2 to perform liquid crystal display based on the control of the control chip U4.

[0078] like Fig. 9 As shown, the communication module 70 includes a power chip U3 and a communication chip U5.

[0079] The power chip U3 is preferably of the type B0505S, and the power chip U3 is used to provide isolated power for the communication chip U5. The communication chip U5 is preferably of the type ADM2483, which is a differential bus transceiver that supports the RS485 protocol. Pins 3, 4, and 6 of the communication chip U5 are connected to pins 51, 52, and 53 of the control chip U4, and pins 12 and 13 of the communication chip U5 are connected to an external device. In one embodiment, the external device may be a master device or other device of the controlled device.

[0080] like Fig.10 As shown, this embodiment also discloses a control method, including: generating a first sensor signal representing the motion state of the sensor 10. Receiving the first sensor signal and the second sensor signal representing the motion state of the controlled device through the control module 20, and generating a first control signal based on the first sensor signal, generating a second control signal based on the second sensor signal, and generating a third control signal based on the first sensor signal or the second sensor signal. Outputting a first output signal representing the motion state of the sensor 10 based on the first control signal and outputting a second output signal representing the motion state of the controlled device based on the second control signal through the output module 30. Outputting a fourth control signal for controlling the controlled device based on the third control signal through the relay module 40.

[0081] In one embodiment, the control method further includes fixing the monitor and the controlled device and causing the monitor to move along with the controlled device.

[0082] When the monitor is installed on the controlled device, the monitor can obtain the motion state information of the controlled device based on the second sensor signal emitted by the motion sensor on the controlled device, and generate a fourth control signal to the controlled device based on the preset control logic to control the controlled device. It can also obtain the motion state information of itself, that is, the controlled device, based on the first sensor signal generated by the sensor 10, and generate a fourth control signal to the controlled device based on the preset control logic to control the controlled device.

[0083] This is different from the prior art, in which only the sensor signal generated by the motion sensor of the controlled device is monitored by a monitor, and a control signal is sent to the main control device based on the sensor signal, and then the main control device sends instructions to control the controlled device. When any link between the motion sensor on the controlled device, the main control device and the controlled device is disconnected, it will cause loss of control and the controlled device will not be able to achieve autonomous control.

[0084] The monitor in this solution can move with the controlled device. When the motion sensor of the controlled device is disconnected, it can also obtain the status data of the controlled device through its own sensing. It can also directly control the controlled device by connecting the relay to the controlled device. Even if the motion sensor or active and passive devices are disconnected, it can provide active monitoring for the controlled device, improve the protection effect, and achieve more comprehensive and diversified monitoring and protection.

[0085] In other embodiments, the monitor and the controlled device may not be fixedly installed, that is, the monitoring method in the prior art may also be implemented through the monitor of this solution.

[0086] In one embodiment, generating the third control signal based on the first sensor signal or the second sensor signal by the control module 20 includes: determining whether the controlled device is overspeeding based on the first sensor signal or the second sensor signal by the control module 20, and generating a corresponding third control signal.

[0087] Since the monitor can move with the controlled device, the first sensor signal and the second sensor signal can both represent the motion state of the controlled device, and the control module 20 can freely choose to judge and control based on the motion state data in the first sensor signal or the second sensor signal based on the preset logic and algorithm. The third control signal controls the on and off of the relay and then generates a fourth control signal. The fourth control signal can be used to control specific components in the controlled device, such as the motor power supply contactor, so that the overspeed power-off protection function can be realized through the monitor.

[0088] In other embodiments, the control module 20 may also generate a third control signal based on other preset logics, and thereby control the controlled device, and the fourth control signal may also be used to control other components of the controlled device. It is understandable that the control module 20 may be configured with logic and parameters by inputting configuration signals in cooperation with the input module 60 and the display screen, or by exchanging information with the control module 20 through the communication module 70, so that the monitor has a very rich usage scenario.

[0089] At the same time, the monitor in this solution also has multiple data output methods. It can output the first sensor signal and the second sensor signal in the form of pulse signals and analog signals, and can also directly interact with external devices through the communication module 70, which is convenient for staff to flexibly obtain and monitor data during actual use. By setting up the storage module 80, parameters and data can also be easily saved.

[0090] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0091] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A monitor, characterized in that: The invention comprises a circuit board and a sensor, a control module, an output module and a relay module arranged on the circuit board, wherein the sensor is used to generate a first sensing signal representing its own motion state, the control module is connected to the sensor to receive the first sensing signal, the control module is connected to a controlled device to receive a second sensing signal representing the motion state of the controlled device, the control module generates a first control signal based on the first sensing signal, the control module generates a second control signal based on the second sensing signal, the output module is connected to the control module to output a first output signal representing the motion state of the sensor based on the first control signal and to output a second output signal representing the motion state of the controlled device based on the second control signal, the control module generates a third control signal based on the first sensing signal or the second sensing signal, and the relay module is connected to the control module to output a fourth control signal for controlling the controlled device based on the third control signal.

2. The monitor according to claim 1, characterized in that: A display module is also provided on the circuit board, and the display module is connected to the control module to perform display based on the control of the control module.

3. The monitor according to claim 1, characterized in that: An input module is also provided on the circuit board. The input module is connected to the control module and is used to input a configuration signal for configuring the control module.

4. The monitor according to claim 1, characterized in that: A communication module is also provided on the circuit board, and the communication module is connected to the control module and the external device to control the communication between the external device and the control module.

5. The monitor according to claim 1, characterized in that: The output module includes a first pulse output unit, which is connected to the control module to output a first output signal representing the motion state of the sensor based on a first control signal; and / or The output module includes a second pulse output unit, which is connected to the control module to output a second output signal representing the motion state of the controlled device based on a second control signal.

6. The monitor according to claim 1, characterized in that: The output module includes a first digital-to-analog conversion unit, which is connected to the control module to output a first output signal representing the motion state of the sensor based on a first control signal; and / or The output module includes a second digital-to-analog conversion unit, which is connected to the control module to output a second output signal representing the motion state of the controlled device based on a second control signal.

7. The monitor according to claim 1, characterized in that: A storage module is also arranged on the circuit board, and the storage module is connected to the control module.

8. A control method, based on the monitor according to any one of claims 1 to 7, characterized in that: The control method comprises: Generate a first sensing signal representing the motion state of the sensor; Receiving a first sensor signal and a second sensor signal representing a motion state of a controlled device through the control module, and generating a first control signal based on the first sensor signal, generating a second control signal based on the second sensor signal, and generating a third control signal based on the first sensor signal or the second sensor signal; Outputting, by the output module, a first output signal representing the motion state of the sensor based on the first control signal and a second output signal representing the motion state of the controlled device based on the second control signal; A fourth control signal for controlling the controlled device is outputted by the relay module based on the third control signal.

9. The control method according to claim 8, characterized in that: The control method also includes fixing the monitor and the controlled device and allowing the monitor to move along with the controlled device.

10. The control method according to claim 9, characterized in that: Generating the third control signal based on the first sensor signal or the second sensor signal by the control module includes: determining whether the controlled device is overspeeding based on the first sensor signal or the second sensor signal by the control module, and generating a corresponding third control signal.

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